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Biological dark matter is an informal term for unclassified or poorly understood genetic material. This genetic material may refer to genetic material produced by unclassified microorganisms . By extension, biological dark matter may also refer to the un-isolated microorganisms whose existence can only be inferred from the genetic material that ...
Generally, fissures are due to injury to the mucosa, or because of a poor local blood supply that prevents proper healing, with spasm of the external anal sphincter contributing. [9] The external anal sphincter can be relaxed by the application of glyceryl trinitrate creams, and constipation is managed with laxatives and improving hydration. [ 9 ]
In astronomy, dark matter is an invisible and hypothetical form of matter that does not interact with light or other electromagnetic radiation.Dark matter is implied by gravitational effects which cannot be explained by general relativity unless more matter is present than can be observed.
Most anal fissures are caused by stretching of the anal mucous membrane beyond its capability. [3] Superficial or shallow anal fissures look much like a paper cut, and may be hard to detect upon visual inspection; they will generally self-heal within a couple of weeks. However, some anal fissures become chronic and deep and will not heal.
Hemorrhoids (or haemorrhoids), also known as piles, are vascular structures in the anal canal. [ 7 ] [ 8 ] In their normal state, they are cushions that help with stool control. [ 2 ] They become a disease when swollen or inflamed ; the unqualified term hemorrhoid is often used to refer to the disease. [ 8 ]
Microbial dark matter is analogous to the dark matter of physics and cosmology due to its elusiveness in research and importance to our understanding of biological diversity. Microbial dark matter can be found ubiquitously and abundantly across multiple ecosystems, but remains difficult to study due to difficulties in detecting and culturing ...
"To prevent anal fissures in infants, be sure to change diapers frequently." MedlinePlus - Anal Fissure To prevent fissures at any age: * Keep the anal area dry * Wipe with soft materials or a moistened cloth or cotton pad * Promptly treat any constipation or diarrhea * Avoid irritating the rectum MedlinePlus - Anal Fissure
Two more highly common causes of functional anorectal pain are levator ani syndrome (LAS) and proctalgia fugax.Both of these conditions are thought to be caused by muscle spasms of the either the levator ani muscle or the anal sphincter muscle respectively, and may overlap symptomatically with a third less-common condition called coccygodynia which is the result of previous trauma to the ...